portable hotspot
uk
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/ˌpɔː.tə.bəl ˈhɒt.spɒt/us
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/ˌpɔːr.t̬ə.bəl ˈhɑːt.spɑːt/ noun a computer, mobile phone, or a specially designed device from which people can connect to the internet by wi-fi, without having to connect to a public wi-fi point; the use of a mobile phone, etc. in such a way: Many companies rent or sell portable hotspot devices like these for international travel. 许多公司出租或出售这样的便携式热点设备，用于国际旅行。